A new hybrid electric ferry has been launched in the harbour city of Kaohsiung, Taiwan, in an effort to reduce greenhouse and diesel emissions.

Kaohsiung recently relaunched the Cijin Island passenger ferry, retrofitted with a Visedo electric propulsion system, replacing the original diesel engines. Now, the Kaohsiung City Government intends to retrofit the rest of its diesel fleet to help curb pollution levels around Taiwan's largest harbour.

Visedo CEO, Kimmo Rauma, said: "Given the geography, ferries are a vital mode of public transport across East and Southeast Asia but they are also the most energy intensive per kilometer travelled. Until now, diesel ferries have been a dirty but necessary part of life around harbours like Kaohsiung.

"In Hong Kong for example, passenger ferries make up the majority of licensed vessels in Victoria Harbour, where it's estimated air pollution kills about 3,200 people every year.

"Visedo has developed a cost-effective and efficient alternative, so rather than waiting until a vessel's service life ends, harbour cities can swap noisy, dirty and expensive diesel for silent electric powertrains that are more efficient, can halve fuel costs and emit no fumes or oil pollution."

Kaohsiung's new e-ferry, Ferry Happiness, is expected to halve daily fuel consumption while transporting 15,000 passengers every day to Cijian Island - a popular tourist destination in Taiwan - at a top speed of nine knots.

Launching from berth every 15 minutes, the vessel will help share the eight million passengers who travel the 650-metre route every year. It is estimated the electric propulsion will save more than 25,000 litres of fuel every year.

Visedo modernised the 100-tonne, 23-metre-long vessel with an electric system to replace the original 300HP diesel engines. The powertrain was designed to ensure pure electric cruising for half the ferry's operation time and, with fast shore charging, this pure electric percentage can be higher.

Head of SOIC's system development, ChihHung Lin, said: "Like many East Asian harbour cities, in Kaoshiung ferries play a key role for everyday public transport, often playing the role that buses do elsewhere.
"Taiwan's 'Harbour Capital' has long suffered from air pollution and only a few years ago the average person was consuming double the national Taiwan average of carbon dioxide.

"In response the Kaoshiung City Government is committed to cleaning up its fleet and is currently considering the possibility of replacing all 11 of its vessels with this new type of e-ferry. This also includes embarking on a hybrid tug-boat project."